CN208431018U - A kind of supporting construction for Support System in Soft Rock Tunnels - Google Patents
A kind of supporting construction for Support System in Soft Rock Tunnels Download PDFInfo
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- CN208431018U CN208431018U CN201820614734.2U CN201820614734U CN208431018U CN 208431018 U CN208431018 U CN 208431018U CN 201820614734 U CN201820614734 U CN 201820614734U CN 208431018 U CN208431018 U CN 208431018U
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of supporting construction for Support System in Soft Rock Tunnels, including the outer supporting being installed between the intracorporal preliminary bracing of surrounding rock tunnel rock, the outer surface for being installed on preliminary bracing and surrounding rock tunnel rock mass and the interior supporting being installed in preliminary bracing, the preliminary bracing includes the upper supporting of the arc-shaped structure of main view shape, the lower supporting of the " U "-shaped structure of main view shape and for by the firm fastening bolt being connected of upper supporting and lower supporting.The supporting construction can form three-in-one support reinforcement mechanism in tunnel, firm supporting is carried out to surrounding rock tunnel rock mass, the structural integrity and stability of Support System in Soft Rock Tunnels entirety are improved, the surrounding rock tunnel rock mass on tunnel displacement occurs, shakes, slides the pressure generated and cause erosion damage to influence the case where Support System in Soft Rock Tunnels is used safely supporting construction reduction Support System in Soft Rock Tunnels when in use.
Description
Technical field
The utility model relates to traffic engineering facilities technical field, specially a kind of supporting knot for Support System in Soft Rock Tunnels
Structure.
Background technique
Weak surrounding rock generally refers to the broken country rock of rock matter weakness, low bearing capacity, developmental joint fissure, structure, and weakness is enclosed
Have that rock crushing is loose, cohesive force is poor the characteristics of rock, Surrounding Rock Strength is low, meets water easily softens, and rock mass discontinuity is weak, easy slump；
The characteristics of weak surrounding rock, determines its deformation behaviour in tunneling process, that is, self-stable ability is poor after excavating, show " from it is steady when
Between it is short, easily collapse " feature, due to the excavation in tunnel, so that the country rock of previously supported tunnel trunk is removed, hole wall faces sky；
Surrouding rock stress is caused to be readjusted, country rock and hole wall are to tunnel clearance Direction distortion.
Nowadays in the design and construction of tunneling process, " from steady poor, easy collapsing " of Support System in Soft Rock Tunnels is caught
Track character, and in tunnel construction, tunnel is to close some support structure two parts by country rock to combine, country rock and supporting shared
Ground pressure avoids or reduces cave in accident when tunnel is built, " to give full play to the bearing capacity of country rock, effectively control
Surrouding rock deformation and relaxation processed ".
In the process of construction for carrying out Support System in Soft Rock Tunnels, the supporting for tunnel is mostly important one of item,
When the supporting in tunnel, prevent weak surrounding rock tunnel rock mass from occurring displacement on tunnel, sliding, shake to be the most main, mesh
It is preceding to lack when being able to solve tunnel and building on the market, supporting fastness and stability is poor, surrounding rock tunnel rock mass occurs on tunnel
It is displaced the supporting construction of landing problem.
Utility model content
The purpose of this utility model is to provide a kind of supporting construction for Support System in Soft Rock Tunnels, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions:
1. a kind of supporting construction for Support System in Soft Rock Tunnels, the supporting construction includes to be installed on surrounding rock tunnel rock
It outer supporting between intracorporal preliminary bracing, the outer surface for being installed on preliminary bracing and surrounding rock tunnel rock mass and is installed on just
Interior supporting in phase supporting；It is characterized by: the preliminary bracing includes that the upper supporting of the arc-shaped structure in cross section, cross section are in
The lower supporting of "u"-shaped and fastening bolt for upper supporting and lower supporting to be connected as one, the upper supporting
There is the multiple first through hole being uniformly distributed along the circumference and multiple second through-holes being uniformly distributed along the circumference, the first through hole in outside wall surface
It is arranged with the second through-hole interval, that is, second through-hole is set between the two neighboring first through hole；It is transversal
Strengthening nail is provided in the two side walls of the lower supporting of the " U "-shaped structure in face；It is in arc that the outer supporting, which has cross section,
The outer topmast plate of shape structure；There are the multiple grasping teeths uniformly distributed along its periphery, the grasping teeth is in circle on the outer topmast plate
Taper；Also there are multiple first circular holes being uniformly distributed along the circumference on the periphery of the outer topmast plate；The outer topmast board ends
Lower part has outer bottom supporting plate connected to it；The outer bottom supporting plate has the vertical section extended downwardly；Under the vertical section
Holding has the horizontal segment vertically bent inwardly；Have in vertical section described in outer bottom supporting plate and passes through to the strengthening nail
Second circular hole；The side of horizontal segment described in outer bottom supporting plate is fitted closely with lower supporting side；In the outside wall surface of the outer bottom supporting plate
Also there is grasping teeth；Extend the second circular hole, outer bottom supporting plate side and be connected with surrounding rock tunnel rock mass in one end of the strengthening nail；Institute
It states and is marked with outer reinforced concrete floor in the space formed between preliminary bracing and outer supporting, between the preliminary bracing and outer supporting
The also pre-buried multiple groups external reinforcement being cast in outer reinforced concrete floor that is equipped with pulls and supports mechanism；It includes point that the external reinforcement, which pulls and supports mechanism,
Cloth in the early stage the first convex block, the second convex block, reinforced pipe of supporting outer surface and be located at the first convex block, the second convex block, reinforced pipe
Positive arc connecting plate, first convex block and the second convex block mirror settings；Fixation connects respectively for first convex block and the second convex block
It is connected to preliminary bracing outer surface, reinforced pipe is connected between first convex block and the second convex block, and the outer surface of reinforced pipe is along pipe
Body axial direction, which is spaced apart, is equipped with circular through hole；The front of the connecting plate is arranged at intervals with screw, and the screw is by reinforced pipe and company
Plate stationary phase is connected；
Be marked with interior reinforced concrete floor in the space formed between the preliminary bracing and interior supporting, the preliminary bracing with
It is pre-buried between interior supporting to be equipped with to reinforce the interior reinforcing drawing for pulling and supporting mechanism, and described in the multiple groups being cast in interior reinforced concrete floor
It holds mechanism and the external reinforcement pulls and supports mechanism one-to-one correspondence；The interior supporting includes the interior topmast of the arc-shaped structure of shape
The interior bottom supporting plate of plate and " U "-shaped structure；It is described it is interior reinforcing pull and support the reinforcement plate that mechanism includes arcuate structure, reinforcement muscle, with
And the soil nailing for reinforcement plate and preliminary bracing to be connected in one；The reinforcement plate be placed in preliminary bracing and interior supporting it
Between, the position of side towards the interior supporting outer surface of the reinforcement plate, which is respectively separated, to be distributed with pointed tooth and pulls and supports bar, and adjacent point
It is installed between tooth and pulls and supports bar；Described one end for pulling and supporting bar is fixedly connected on the plate body of reinforcement plate, this is pulled and supported between the outer surface of bar
Separate the perforation being equipped with for Concrete Filled；The plate body side of the reinforcement plate is spaced apart the circular staple for being equipped with and mutually wearing for soil nailing
Hole, one end of the soil nailing sequentially pass through nail hole, the second opening, the first circular hole and are fixedly linked with surrounding rock tunnel rock mass；The increasing
Gu muscle includes anchor pole, one end of the anchor pole sequentially passes through the first opening, outer supporting, surrounding rock tunnel rock mass and is located at surrounding rock tunnel rock
Intracorporal position is fixedly connected with insertion cone, and the outer surface annular spread for being inserted into cone has four groups of cross-sectional shape structures triangular in shape
Double wedge；Position of the other end of the anchor pole between interior supporting and preliminary bracing is fixedly connected with anchor head, the anchor head
Outer surface annular spread has four groups of damaged surfaces for pulling and supporting column, and pulling and supporting column to be intervally distributed with spherical shape protrusion.
What the bottom end of the upper supporting was fixedly connected with L shape structure determines block, this determines to offer at the top of the block of block for tight
The bolt hole that fixing bolt is mutually worn, and the bottom for determining block is rough surface.
The cross-sectional shape of first convex block and the second convex block structure in a rectangular trapezoid, first convex block and the second convex block
Inclined-plane on offer for reinforced pipe clamping " C " shape recess.
The front of the connecting plate offers the round mouth passed through for screw, and frosted layer is coated in the round mouth.
The plate body side of the reinforcement plate offers non-slip groove close to the location interval of preliminary bracing inner surface, the non-slip groove
Cross-sectional shape be in serpentine structure.
The position that one end of the soil nailing is cast in interior reinforced concrete floor is welded with stop nut, which installs
Position and the installation position of outer bottom supporting plate are perpendicular.
The bottom fixed bonding of the anchor head has the gasket of circular configuration, and the outer surface of the anchor head is intervally distributed with concavo-convex
The groove of structure.
The anchor pole is at least installed on seven groups, and the outer surface of the anchor pole is intervally distributed with reinforcing rib, and the body of rod table of anchor pole
Face is coated with anti-decaying paint.
It is embedded with rubber pad in the hole wall of the nail hole, and is coated between the outer surface of rubber pad and the inner hole wall of nail hole
Adhesive.
The rectangular triangle of cross-sectional shape for pulling and supporting column styletable head, the styletable head for pulling and supporting column are welded with corrosion resistant ring.
The beneficial effects of the utility model are: this is used for the supporting construction of Support System in Soft Rock Tunnels, can be drawn by external reinforcement
Hold mechanism, it is interior reinforcing pull and support mechanism, interior reinforced concrete floor, outer reinforced concrete floor, interior supporting and outer supporting, in surrounding rock tunnel
It is interior to form three-in-one support reinforcement mechanism, supporting construction and surrounding rock tunnel rock mass are combined closely in one, to surrounding rock tunnel
Rock mass carries out firm supporting, outer supporting can be allowed to clench surrounding rock tunnel rock mass under the action of grasping teeth, to enhance this
The structural integrity and stability of supporting construction extend the service life of supporting construction, while utilizing three-in-one reinforcing branch
The convenient long-term support reinforcement processing of carry out comprehensive to surrounding rock tunnel rock mass of mechanism is protected, can allow Support System in Soft Rock Tunnels outer surface
Surrounding rock tunnel rock mass remains stable state, improves the structural integrity and stability of Support System in Soft Rock Tunnels entirety, contracting
Subtract surrounding rock tunnel rock mass of the Support System in Soft Rock Tunnels when in use on tunnel displacement occur, shake, slide the pressure generated and right
The case where supporting construction causes erosion damage to influence Support System in Soft Rock Tunnels safe handling.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model preliminary bracing；
Fig. 3 is structure enlargement diagram at the A of the utility model Fig. 2
Fig. 4 is the local structure perspective of the utility model Fig. 3；
Fig. 5 is the structural perspective of the utility model reinforcement muscle；
Fig. 6 is the local structure perspective of the utility model reinforcement plate；
Fig. 7 is the structural perspective of the utility model preliminary bracing；
Fig. 8 is the structural schematic diagram of supporting on the utility model；
Fig. 9 is the structural schematic diagram of supporting in the utility model；
Figure 10 is the structural schematic diagram of the outer supporting of the utility model；
Figure 11 is structural perspective at the B of the utility model Figure 10.
In figure: 1 preliminary bracing, block, 12 times supportings, 121 determine in supporting, 111 first openings, 112 second openings, 113 on 11
Strengthening nail, 13 fastening bolts, 2 outer supportings, 21 outer topmast plates, 211 first circular holes, 212 second circular holes, 22 outer bottom supporting plates, 23 are grabbed
Tooth, 3 external reinforcements pull and support mechanism, 31 first convex blocks, 32 second convex blocks, 33 reinforced pipes, 331 through-holes, 34 connecting plates, 35 screws, 4 outer steel
Reinforced concrete layer, reinforced concrete floor in 5 are reinforced in 6 and pull and support mechanism, 61 reinforcement plates, 611 pointed tooths, 612 nail hole, 613 anti-skidding
Slot, 62 soil nailings, 621 stop nuts, 63 pull and support bar, 631 perforation, 64 reinforcement muscle, 641 anchor poles, 6411 reinforcing ribs, 642 anchor heads,
6421 gaskets, 6422 grooves, 6423 pull and support column, 6424 protrusions, 643 insertion cones, 6431 double wedges, supporting in 7, topmast plate in 71,
Bottom supporting plate, 8 surrounding rock tunnel rock mass in 72.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-11 is please referred to, the utility model provides a kind of technical solution:
A kind of supporting construction for Support System in Soft Rock Tunnels, including be installed in surrounding rock tunnel rock mass 8 preliminary bracing 1,
It the outer supporting 2 that is installed between the outer surface of preliminary bracing 1 and surrounding rock tunnel rock mass 8 and is installed on interior in preliminary bracing 1
Supporting 7, preliminary bracing 1 include the lower supporting of the upper supporting 11 of the arc-shaped structure of main view shape, the " U "-shaped structure of main view shape
12 and for by the firm fastening bolt 13 being connected of upper supporting 11 and lower supporting 12, between the outer surface of supporting 11 on this is distinguished
The second opening 112 of the first opening 111 and circular configuration equipped with circular configuration is separated, and between the first adjacent opening 111
Install the second opening 112；The side of lower supporting 12 is arranged at intervals with strengthening nail 121, and the setting of strengthening nail 121 is convenient for lower supporting
12 are bonded with outer bottom supporting plate 22 in one, are quickly installed convenient for preliminary bracing 1 and outer supporting 2, so that preliminary bracing 1
It combines closely with outer supporting 2 in one, to facilitate the installation of Support System in Soft Rock Tunnels supporting construction, is also beneficial to raising weakness and encloses
The overall stability of rock tunnel support structure.
The outer surface of outer supporting 2 is intervally distributed with the grasping teeth 23 of conical structure, and the grasping teeth 23 of use can allow outer supporting 2
Surrounding rock tunnel rock mass 8 is clenched, which includes the outer topmast plate 21 and main view shape of the arc-shaped structure of main view shape
The outer bottom supporting plate 22 of L-shaped structure, and the head clearance of outer topmast plate 21 offers the first circular hole 211；Outer bottom supporting plate 22 is perpendicular
The side of straight section is spaced apart the second circular hole 212 being equipped with for 121 grafting of strengthening nail, the outer bottom supporting plate 22 anyhow the side of section under
12 side of supporting fits closely；One end of strengthening nail 121 extend the second circular hole 212,22 side of outer bottom supporting plate and with country rock tunnel
Road rock mass 8 is fixedly linked.
Outer reinforced concrete floor 4 is marked in the space formed between preliminary bracing 1 and outer supporting 2, the preliminary bracing 1 and outer
The pre-buried seven groups of external reinforcements being cast in outer reinforced concrete floor 4 that are equipped with pull and support mechanism 3 between supporting 2；External reinforcement pulls and supports mechanism 3
Including be distributed in the first convex block 31 of 1 outer surface of preliminary bracing, the second convex block 32, reinforced pipe 33 and be located at the first convex block 31,
Second convex block 32, the positive arc connecting plate 34 of reinforced pipe 33, first convex block 31 and the mutual mirror settings of the second convex block 32；First
Convex block 31 and the second convex block 32 are respectively fixedly connected in 1 outer surface of preliminary bracing, between first convex block 31 and the second convex block 32
It is connected with reinforced pipe 33, and the outer surface of reinforced pipe 33 is spaced apart along tube body axial direction and is equipped with circular through hole 331；Connecting plate 34
Front is arranged at intervals with screw 35, which is connected reinforced pipe 33 and 34 stationary phase of connecting plate.
Interior reinforced concrete floor 5 is marked in the space formed between preliminary bracing 1 and interior supporting 7, the preliminary bracing 1 with it is interior
Between supporting 7 it is pre-buried be equipped with to reinforce in be cast in interior reinforced concrete floor 5 seven groups pull and support mechanism 6, and interior supporting 7 includes master
Depending on the interior topmast plate 71 of the arc-shaped structure of shape and the interior bottom supporting plate 72 of the " U "-shaped structure of main view shape；Interior reinforcing pulls and supports machine
The reinforcement plate 61 of structure 6 including arcuate structure, reinforcement muscle 64 and for reinforcement plate 61 and preliminary bracing 1 to be connected in one
Soil nailing 62；Reinforcement plate 61 is placed between preliminary bracing 1 and interior supporting 7, and the side of the reinforcement plate 61 is towards interior 7 outer surface of supporting
Position be respectively separated to be distributed with and pointed tooth 611 and pull and support bar 63, the pointed tooth 611 of use can increase grabbing for 61 surface of reinforcement plate
Power allows reinforcement plate 61 to be firmly connected to upper branch when reinforcement plate 61 is connected with upper supporting 11 by soil nailing 62 using pointed tooth 611
In shield 11, reinforcement plate 61 is improved in the stable connection of upper supporting 11, can utilize soil nailing 62 can be by reinforcement plate 61, upper supporting
11, reinforced pipe 33, outer supporting 2 are connected to one, so that supporting construction is integrally stronger, and between adjacent pointed tooth 611
It installs and pulls and supports bar 63；The one end for pulling and supporting bar 63 is fixedly connected on the plate body of reinforcement plate 61, this pulls and supports the appearance face interval of bar 63
Offer the perforation 631 for Concrete Filled；The setting of perforation 631 can be poured interior reinforcing bar with preliminary bracing 1 in interior supporting 7 and mix
It when solidifying soil layer 5, allows in Concrete Filled to perforation 631, so that interior reinforced concrete floor 5 and pulling and supporting that bar 63 is secured to be cast in one
Body, the plate body side of reinforcement plate 61 are spaced apart the round nail hole 612 for being equipped with and wearing for 62 phase of soil nailing, and one end of the soil nailing 62 is successively worn
It crosses the 112, first circular hole 211 of opening of nail hole 612, second and is fixedly linked with surrounding rock tunnel rock mass 8；Reinforcement muscle 64 includes anchor pole
641, one end of the anchor pole 641 sequentially passes through the first opening 111, outer supporting 2, surrounding rock tunnel rock mass 8 and is located at surrounding rock tunnel rock
Position in body 8 is fixedly connected with insertion cone 643, and the outer surface annular spread for being inserted into cone 643 has four groups of cross-sectional shapes in three
The double wedge 6431 of angular structure；The setting of double wedge 6431 can allow insertion cone 643 to be combined closely with surrounding rock tunnel rock mass 8, prevent
The case where anchor pole 641 is separated with surrounding rock tunnel rock mass 8 in use, the structure for being conducive to improve the supporting construction are steady
Solidity, position of the other end of anchor pole 641 between interior supporting 7 and preliminary bracing 1 are fixedly connected with anchor head 642, the anchor head
It is convex that 642 outer surface annular spread has four groups of damaged surfaces for pulling and supporting column 6423, and pulling and supporting column 6423 to be intervally distributed with spherical shape
6424 are played, the setting of protrusion 6424, which can allow, to be pulled and supported column and be firmly connected in one with interior reinforced concrete floor 5, is improved and is pulled and supported column
6423 with the stable connection of interior reinforced concrete floor 5, and then improve the fastness of supporting construction entirety.
What the bottom end of upper supporting 11 was fixedly connected with L shape structure determines block 113, this determines to offer at the top of the block of block 113
For the bolt hole that 13 phase of fastening bolt is worn, and determine block 113 bottom be rough surface, the setting of rough surface be capable of increasing determine block 13 with
Frictional force between lower supporting 12, so that upper supporting 11 and lower supporting 12 are firmly incorporated into one under the action of fastening bolt 13
Body.
The cross-sectional shape of first convex block 31 and the second convex block 32 structure in a rectangular trapezoid, first convex block 31 and second convex
" C " the shape recess being clamped for reinforced pipe 33 is offered on the inclined-plane of block 32, the setting of recess can firmly block reinforced pipe 33
It connects between the first convex block 31 and the second convex block 32.
The front of connecting plate 34 offers the round mouth passed through for screw 35, and frosted layer is coated in the round mouth, and frosted layer is set
It sets convenient for passing through circular hole using this connection piece of screw 35, connecting plate 34 and reinforced pipe 33 is firmly combined in one.
The plate body side of reinforcement plate 61 offers non-slip groove 613 close to the location interval of 1 inner surface of preliminary bracing, this is anti-skidding
The cross-sectional shape of slot 613 is in serpentine structure, and the non-slip groove 613 of serpentine structure is capable of increasing the coarse journey on 61 surface of reinforcement plate
Degree and anti-skid factor, can be when not being poured interior reinforced concrete floor 5, and the connection improved between reinforcement plate 61 and upper supporting 11 is steady
Solidity；Concrete can be allowed to enter non-slip groove 613 when reinforced concrete floor 5 in being poured, so that interior reinforced concrete floor 5 and increasing
Solid plate 61 is securely cast in one.
The position that one end of soil nailing 62 is cast in interior reinforced concrete floor 5 is welded with stop nut 621, the soil nailing 62
The installation position of installation position and outer bottom supporting plate 21 is perpendicular, the setting of stop nut 621 can using soil nailing 62 by reinforcement
When plate 61, upper supporting 11 and outer supporting 2 combine, hammering into surrounding rock tunnel rock mass 8 for 62 transition of soil nailing is prevented, utilizes limit spiral shell
While female 621 pairs of soil nailings 62 play limit, soil nailing 62 can either be cast in interior reinforced concrete floor 5, and can be poured
In outer reinforced concrete floor 4, so that soil nailing 62 is secured by interior reinforced concrete floor 5, outer reinforced concrete floor 4 and lower supporting 12
Be incorporated into one.
The bottom fixed bonding of anchor head 642 has the gasket 6421 of circular configuration, and the setting of gasket 6421 can reduce reinforcement
Muscle 64 is when upper supporting 11, outer supporting 2 to be connected in one, generated abrasion between anchor head 642 and upper supporting 11, to prolong
The service life of long anchor head 642, the outer surface of the anchor head 642 are intervally distributed with the groove 6422 of concave/convex-shaped structure, groove 6422
Setting can allow 642 surface of anchor head that there is concave/convex-shaped structure, increase the whole degree of roughness of anchor head 642, improve anchor head
642 whole grips, so that anchor head 642 is firmly combined with interior reinforced concrete floor 5.
Anchor pole 641 is at least installed on seven groups, and the outer surface of the anchor pole 641 is intervally distributed with reinforcing rib 6411, reinforcing rib
6411 setting can enhance the whole structural strength of anchor pole 641, improve the cracking resistance of anchor pole 641, reduce anchor pole 641 and inciting somebody to action
Upper supporting 11 abrasion suffered when being used in combination with outer supporting 2, to extend the service life of anchor pole 641, and anchor pole
641 body of rod surface is coated with anti-decaying paint.
Rubber pad is embedded in the hole wall of nail hole 612, the setting of rubber pad can be in soil nailing 62 in use, reducing soil nailing 62
It is worn to caused by nail hole 612, and is coated with adhesive, adhesive between the outer surface of rubber pad and the inner hole wall of nail hole 612
Setting rubber pad can be allowed to be connected firmly in nail hole 612.
The rectangular triangle of cross-sectional shape of 6423 styletable head of column is pulled and supported, the design of triangular structure of right angle, which can allow, to be pulled and supported
Column 6423 is securely incorporated into one with interior reinforced concrete floor 5, and raising pulls and supports column 6423 and securely combined with interior reinforced concrete floor 5
Integral firmness afterwards, the styletable head for pulling and supporting column 6423 are welded with corrosion resistant ring, and it is mixed that the setting of corrosion resistant ring can reduce interior reinforcing bar
Solidifying soil layer 5 to extend the service life for pulling and supporting column 6423, and then extends anchor pole to erosion damage caused by column 6423 is pulled and supported
641 service life is conducive to reinforcement muscle 64 and for a long time securely pulls and supports reinforcement plate 61, upper supporting 11, outer supporting 2 in one.
The grasping teeth 23 that the utility model uses can allow outer supporting 2 to clench surrounding rock tunnel rock mass 8, and in reinforcement muscle
64, under the cooperation of soil nailing 62 and screw 35, preliminary bracing 1 is connected with outer supporting 2, so that surrounding rock tunnel rock mass 8 and initial stage
Supporting 1, outer supporting 2 are firmly pulled and supported in one, while embedding external reinforcement pulls and supports mechanism 3 simultaneously between outer supporting 2 and preliminary bracing 1
Outer reinforced concrete floor 4, forms support reinforcement mechanism at first in surrounding rock tunnel rock mass 8 in casting, is pulled and supported using interior reinforcing
Preliminary bracing 1 is connected by mechanism 6 with outer reinforced concrete floor 4, and preliminary bracing 1 is allowed to be formed at second on surrounding rock tunnel rock mass 8
Support reinforcement mechanism, and embedding interior reinforcing pulls and supports mechanism 6 and is poured interior armored concrete between interior supporting 7 and preliminary bracing 1
Layer 5 pulls and supports machine by interior reinforcing so that interior reinforced concrete floor 5 forms support reinforcement mechanism at third to surrounding rock tunnel rock mass 8
Structure 6 and external reinforcement pull and support mechanism 3 match by first, at second and at third the firm connection of support reinforcement mechanism in a bodily form
At three-in-one support reinforcement mechanism, the structural integrity and stability of the supporting construction is greatly improved, facilitates and utilizes three
The support reinforcement mechanism of unification is to the 8 long-term support reinforcement processing of comprehensive carry out of surrounding rock tunnel rock mass, to improve weak surrounding rock
The structural integrity and stability of tunnel entirety.
Working principle: in the construction step of Support System in Soft Rock Tunnels:
S1, outer supporting 2 is disposed in tunnel in time after excavating first to tunnel, outer supporting 2 is fitted in surrounding rock tunnel
On rock mass 8；
S2, preliminary bracing 1 is then disposed in outer supporting 2, first lower supporting 12 is placed in the tunnel of excavation, allow outer branch
The outer bottom supporting plate 22 of shield 2 is placed in lower 12 two sides of supporting, and then upper supporting 11 is placed in lower supporting 12, and utilizes fastening spiral shell
Bolt 13 combines closely upper supporting 11 and lower supporting 12；Before disposing preliminary bracing 1, need to dispose on the outside of supporting in the early stage 1 outer
Reinforcing pulls and supports mechanism 3, reinforces in the placement of the inside of supporting in the early stage 1 and pulls and supports mechanism 6, by interior reinforcing pull and support mechanism 6 with it is additional
Preliminary bracing 1 and outer supporting 2 are firmly incorporated into one admittedly pulling and supporting mechanism 3, passed through between lower supporting 12 and outer bottom supporting plate 22
Strengthening nail 121 is connected to one, and cyclization is closed in preliminary bracing 1 later；
S3, it is reinforced in setting and pulls and supports mechanism 6 and when external reinforcement pulls and supports mechanism 3, it is necessary first to the in supporting in the early stage 1
Clamping setting reinforced pipe 33 between one convex block 31 and the second convex block 32, then utilizes the cooperation of connecting plate 34 and screw 35 by seven groups of increasings
Strong pipe 33 is connected in one, and recycles reinforcement muscle 64 that upper supporting 11, reinforced pipe 33 and outer supporting 2 are incorporated into one, then again
Reinforcement plate 61, upper supporting 11 and outer supporting 2 are incorporated into one using soil nailing 62, using strengthening nail 121 by outer supporting 2 and lower branch
Shield 12 is incorporated into one, to combining closely preliminary bracing 1 and outer supporting 2 in one；
S4, be arranged external reinforcement pull and support mechanism 3 when, there are certain spaces between preliminary bracing 1 and outer supporting 2, and
Outer reinforced concrete floor 4 is poured by slip casting machine in the space reserved, external reinforcement is pulled and supported mechanism 3 by outer reinforced concrete floor 4
It is cast in reserved space together；
S5, interior supporting 7 is placed in preliminary bracing 1, can selects for interior bottom supporting plate 72 and lower supporting 12 to be bonded to each other,
Or the construction materials such as masonry are added including selection between 72 bottom of bottom supporting plate and lower supporting 12 and allow interior bottom supporting plate 72 and lower supporting
It is not contacted between 12, interior bottom supporting plate 72 and the outer surface of preliminary bracing 1 reserve space, will be in reserved space by slip casting machine
Reinforced concrete floor 5 in being poured, interior reinforcing is pulled and supported mechanism 6 and is cast in reserved space together by interior reinforced concrete floor 5, interior
It is embedding in advance in reinforced concrete floor 6 and outer reinforced concrete floor 4 to have framework of steel reinforcement, in being poured when reinforced concrete floor 6,
It first passes through external building support to be supported interior supporting 7, casting is carried out after stablizing and forms interior reinforced concrete floor 6, i.e.,
The support work of achievable Support System in Soft Rock Tunnels.
The utility model can pull and support mechanism 3 by external reinforcement, interior reinforcing pulls and supports mechanism 6, interior reinforced concrete floor 5, outer
Reinforced concrete floor 4, interior supporting 7 and outer supporting 2 form three-in-one support reinforcement mechanism in surrounding rock tunnel, by supporting knot
Structure and surrounding rock tunnel rock mass 8 are combined closely in one, firm supporting are carried out to surrounding rock tunnel rock mass 8, under the action of grasping teeth 23
Outer supporting 2 can be allowed to clench surrounding rock tunnel rock mass 8, so that the structural integrity and stability of the supporting construction are enhanced,
The service life of supporting construction is extended, while convenient to the full side of surrounding rock tunnel rock mass 8 using three-in-one support reinforcement mechanism
Position carries out long-term support reinforcement processing, and the surrounding rock tunnel rock mass 8 of Support System in Soft Rock Tunnels outer surface can be allowed to remain stable
State improves the structural integrity and stability of Support System in Soft Rock Tunnels entirety, reduces Support System in Soft Rock Tunnels tunnel when in use
On surrounding rock tunnel rock mass 8 occur displacement, shake, slide generate pressure and on supporting construction cause erosion damage influence it is soft
The case where weak surrounding rock tunnel is used safely.
It should be noted that the relational terms such as first and second and the like occurred in this article are used merely to one
Entity is distinguished with another entity, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of supporting construction for Support System in Soft Rock Tunnels, the supporting construction includes to be installed in surrounding rock tunnel rock mass
Preliminary bracing, the outer supporting between the outer surface for being installed on preliminary bracing and surrounding rock tunnel rock mass and be installed on initial stage branch
Interior supporting in shield；It is characterized by: the preliminary bracing includes the upper supporting of the arc-shaped structure in cross section, cross section in " U "
The lower supporting of shape structure and fastening bolt for upper supporting and lower supporting to be connected as one, the outer wall of the upper supporting
There is the multiple first through hole being uniformly distributed along the circumference and multiple second through-holes being uniformly distributed along the circumference, the first through hole and institute on face
The the second through-hole interval setting stated, that is, second through-hole is set between the two neighboring first through hole；Cross section is in
Strengthening nail is provided in the two side walls of the lower supporting of "u"-shaped；The outer supporting has the arc-shaped knot in cross section
The outer topmast plate of structure；There are the multiple grasping teeths uniformly distributed along its periphery, the grasping teeth is in cone on the outer topmast plate；
Also there are multiple first circular holes being uniformly distributed along the circumference on the periphery of the outer topmast plate；The lower part of the outer topmast board ends has
There is outer bottom supporting plate connected to it；The outer bottom supporting plate has the vertical section extended downwardly；The lower end of the vertical section has
The horizontal segment vertically bent inwardly；There is the second circle passed through to the strengthening nail in vertical section described in outer bottom supporting plate
Hole；The side of horizontal segment described in outer bottom supporting plate is fitted closely with lower supporting side；Also have in the outside wall surface of the outer bottom supporting plate
Grasping teeth；Extend the second circular hole, outer bottom supporting plate side and be connected with surrounding rock tunnel rock mass in one end of the strengthening nail；The initial stage
Outer reinforced concrete floor is marked in the space formed between supporting and outer supporting, it is also pre-buried between the preliminary bracing and outer supporting
It is equipped with the multiple groups external reinforcement being cast in outer reinforced concrete floor and pulls and supports mechanism；It includes being distributed in just that the external reinforcement, which pulls and supports mechanism,
First convex block of phase supporting outer surface, the second convex block, reinforced pipe and to be located at the first convex block, the second convex block, reinforced pipe positive
Arc connecting plate, first convex block and the second convex block mirror settings；First convex block is respectively fixedly connected with the second convex block in first
Phase supporting outer surface is connected with reinforced pipe between first convex block and the second convex block, and the outer surface of reinforced pipe is along tube body axial direction
Direction, which is spaced apart, is equipped with circular through hole；The front of the connecting plate is arranged at intervals with screw, which fixes reinforced pipe and connecting plate
It is connected in one；
Interior reinforced concrete floor, the preliminary bracing and interior branch are marked in the space formed between the preliminary bracing and interior supporting
Between shield it is pre-buried be equipped with to reinforce in the multiple groups that are cast in interior reinforced concrete floor pull and support mechanism, and the interior reinforcing pulls and supports machine
Structure and the external reinforcement pull and support mechanism one-to-one correspondence；The interior supporting include the interior topmast plate of the arc-shaped structure of shape with
And the interior bottom supporting plate of " U "-shaped structure；It includes the reinforcement plate of arcuate structure, reinforcement muscle, Yi Jiyong that the interior reinforcing, which pulls and supports mechanism,
In the soil nailing that reinforcement plate and preliminary bracing are connected in one；The reinforcement plate is placed between preliminary bracing and interior supporting, should
The position of the side of reinforcement plate towards interior supporting outer surface, which is respectively separated, to be distributed with pointed tooth and pulls and supports bar, and between adjacent pointed tooth
It installs and pulls and supports bar；Described one end for pulling and supporting bar is fixedly connected on the plate body of reinforcement plate, which opens up
There is the perforation for Concrete Filled；The plate body side of the reinforcement plate is spaced apart the round nail hole for being equipped with and mutually wearing for soil nailing, the soil
One end of nail sequentially passes through nail hole, the second opening, the first circular hole and is fixedly linked with surrounding rock tunnel rock mass；The reinforcement muscle includes
Anchor pole, one end of the anchor pole sequentially pass through the first opening, outer supporting, surrounding rock tunnel rock mass and are located at the intracorporal position of surrounding rock tunnel rock
It sets and is fixedly connected with insertion cone, and the outer surface annular spread for being inserted into cone has the double wedge of four groups of cross-sectional shape structures triangular in shape；
Position of the other end of the anchor pole between interior supporting and preliminary bracing is fixedly connected with anchor head, the appearance face ring of the anchor head
Shape is distributed with the damaged surface that four groups pull and support column, and pull and support column and is intervally distributed with spherical shape protrusion.
2. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the upper supporting
Bottom end be fixedly connected with the block of determining of L-shaped structure, offer the spiral shell mutually worn for fastening bolt at the top of the block for determining block
Keyhole, and the bottom for determining block is rough surface.
3. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: described first is convex
It is offered on the cross-sectional shape of block and the second convex block structure in a rectangular trapezoid, first convex block and the inclined-plane of the second convex block
For " C " shape recess of reinforced pipe clamping.
4. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the connecting plate
Front offers the round mouth passed through for screw, and frosted layer is coated in the round mouth.
5. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the reinforcement plate
Plate body side offer non-slip groove close to the location interval of preliminary bracing inner surface, the cross-sectional shape of the non-slip groove is in serpentine
Structure.
6. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the soil nailing
The position that one end is cast in interior reinforced concrete floor is welded with stop nut, the installation position of the soil nailing and the peace of outer bottom supporting plate
If position is perpendicular.
7. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the anchor head
Bottom fixed bonding has the gasket of circular configuration, and the outer surface of the anchor head is intervally distributed with the groove of concave/convex-shaped structure.
8. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the anchor pole is extremely
It is installed on seven groups less, the outer surface of the anchor pole is intervally distributed with reinforcing rib, and the body of rod surface of anchor pole is coated with anti-decaying paint.
9. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: the nail hole
It is embedded with rubber pad in hole wall, and is coated with adhesive between the outer surface of rubber pad and the inner hole wall of nail hole.
10. a kind of supporting construction for Support System in Soft Rock Tunnels according to claim 1, it is characterised in that: described to pull and support
The rectangular triangle of cross-sectional shape of column styletable head, the styletable head for pulling and supporting column are welded with corrosion resistant ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820614734.2U CN208431018U (en) | 2018-04-27 | 2018-04-27 | A kind of supporting construction for Support System in Soft Rock Tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820614734.2U CN208431018U (en) | 2018-04-27 | 2018-04-27 | A kind of supporting construction for Support System in Soft Rock Tunnels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208431018U true CN208431018U (en) | 2019-01-25 |
Family
ID=65102030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820614734.2U Expired - Fee Related CN208431018U (en) | 2018-04-27 | 2018-04-27 | A kind of supporting construction for Support System in Soft Rock Tunnels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208431018U (en) |
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2018
- 2018-04-27 CN CN201820614734.2U patent/CN208431018U/en not_active Expired - Fee Related
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Granted publication date: 20190125 |